1 /*
2  * Copyright (C) 2010 Google Inc.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package benchmarks.regression;
18 
19 import java.util.zip.Adler32;
20 import java.util.zip.CRC32;
21 
22 public class ChecksumBenchmark {
timeAdler_block(int reps)23     public void timeAdler_block(int reps) throws Exception {
24         byte[] bytes = new byte[10000];
25         Adler32 adler = new Adler32();
26         for (int i = 0; i < reps; ++i) {
27             adler.update(bytes);
28         }
29     }
timeAdler_byte(int reps)30     public void timeAdler_byte(int reps) throws Exception {
31         Adler32 adler = new Adler32();
32         for (int i = 0; i < reps; ++i) {
33             adler.update(1);
34         }
35     }
timeCrc_block(int reps)36     public void timeCrc_block(int reps) throws Exception {
37         byte[] bytes = new byte[10000];
38         CRC32 crc = new CRC32();
39         for (int i = 0; i < reps; ++i) {
40             crc.update(bytes);
41         }
42     }
timeCrc_byte(int reps)43     public void timeCrc_byte(int reps) throws Exception {
44         CRC32 crc = new CRC32();
45         for (int i = 0; i < reps; ++i) {
46             crc.update(1);
47         }
48     }
49 }
50